ippTools sql files should use @WORD@ replacement instead of %s hooks

[eugene]

in various places, the sql includes commented-out segments with a string format statement (eg, -- WHERE HOOK %s) which is replaced with some optional code block by the c program (eg, a where clause). This mechanism is fragile, esp since the sql wildcard is %. The new replacement is to use a special word in the sql statement (@WORD@) that is then explicitly replaced in the c code with a statement of the form psStringSubstitute(&query,whereClause,"@WORD@").

see example of the latter code in magictool_restore_diff.sql / magictool.c